Supercurrents and spontaneous time-reversal symmetry breaking by nonmagnetic disorder in unconventional superconductors

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Supercurrents and spontaneous time-reversal symmetry breaking by nonmagnetic disorder in unconventional superconductors. / Breiø, Clara N.; Hirschfeld, P. J.; Andersen, Brian M.

In: Physical Review B, Vol. 105, No. 1, 014504, 01.01.2022.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Breiø, CN, Hirschfeld, PJ & Andersen, BM 2022, 'Supercurrents and spontaneous time-reversal symmetry breaking by nonmagnetic disorder in unconventional superconductors', Physical Review B, vol. 105, no. 1, 014504. https://doi.org/10.1103/PhysRevB.105.014504

APA

Breiø, C. N., Hirschfeld, P. J., & Andersen, B. M. (2022). Supercurrents and spontaneous time-reversal symmetry breaking by nonmagnetic disorder in unconventional superconductors. Physical Review B, 105(1), [014504]. https://doi.org/10.1103/PhysRevB.105.014504

Vancouver

Breiø CN, Hirschfeld PJ, Andersen BM. Supercurrents and spontaneous time-reversal symmetry breaking by nonmagnetic disorder in unconventional superconductors. Physical Review B. 2022 Jan 1;105(1). 014504. https://doi.org/10.1103/PhysRevB.105.014504

Author

Breiø, Clara N. ; Hirschfeld, P. J. ; Andersen, Brian M. / Supercurrents and spontaneous time-reversal symmetry breaking by nonmagnetic disorder in unconventional superconductors. In: Physical Review B. 2022 ; Vol. 105, No. 1.

Bibtex

@article{97c450b48d984f8992cd7cd2e5d69a1a,

title = "Supercurrents and spontaneous time-reversal symmetry breaking by nonmagnetic disorder in unconventional superconductors",

abstract = "Recently, a theoretical study [Z.-X. Li , npj Quantum Mater. 6, 36 (2021)2397-464810.1038/s41535-021-00335-4] investigated a model of a disordered d-wave superconductor, and reported local time-reversal symmetry breaking current loops for sufficiently high disorder levels. Since the pure d-wave superconducting state does not break time-reversal symmetry, it is surprising that such persistent currents arise purely from nonmagnetic disorder. Here, we perform a detailed theoretical investigation of such disorder-induced orbital currents, and show that the occurrence of the currents can be traced to the emergence of local (extended) s-wave order coexisting with underlying disordered d-wave pairing, making it favorable to generate local s±id regions. We discuss the energetics leading to such regions of s±id order, which support spontaneous local current loops in the presence of inhomogeneous density modulations.",

author = "Brei{\o}, {Clara N.} and Hirschfeld, {P. J.} and Andersen, {Brian M.}",

note = "Publisher Copyright: {\textcopyright}2022 American Physical Society",

year = "2022",

month = jan,

day = "1",

doi = "10.1103/PhysRevB.105.014504",

language = "English",

volume = "105",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "1",

}

RIS

TY - JOUR

T1 - Supercurrents and spontaneous time-reversal symmetry breaking by nonmagnetic disorder in unconventional superconductors

AU - Breiø, Clara N.

AU - Hirschfeld, P. J.

AU - Andersen, Brian M.

PY - 2022/1/1

Y1 - 2022/1/1

N2 - Recently, a theoretical study [Z.-X. Li , npj Quantum Mater. 6, 36 (2021)2397-464810.1038/s41535-021-00335-4] investigated a model of a disordered d-wave superconductor, and reported local time-reversal symmetry breaking current loops for sufficiently high disorder levels. Since the pure d-wave superconducting state does not break time-reversal symmetry, it is surprising that such persistent currents arise purely from nonmagnetic disorder. Here, we perform a detailed theoretical investigation of such disorder-induced orbital currents, and show that the occurrence of the currents can be traced to the emergence of local (extended) s-wave order coexisting with underlying disordered d-wave pairing, making it favorable to generate local s±id regions. We discuss the energetics leading to such regions of s±id order, which support spontaneous local current loops in the presence of inhomogeneous density modulations.

AB - Recently, a theoretical study [Z.-X. Li , npj Quantum Mater. 6, 36 (2021)2397-464810.1038/s41535-021-00335-4] investigated a model of a disordered d-wave superconductor, and reported local time-reversal symmetry breaking current loops for sufficiently high disorder levels. Since the pure d-wave superconducting state does not break time-reversal symmetry, it is surprising that such persistent currents arise purely from nonmagnetic disorder. Here, we perform a detailed theoretical investigation of such disorder-induced orbital currents, and show that the occurrence of the currents can be traced to the emergence of local (extended) s-wave order coexisting with underlying disordered d-wave pairing, making it favorable to generate local s±id regions. We discuss the energetics leading to such regions of s±id order, which support spontaneous local current loops in the presence of inhomogeneous density modulations.

U2 - 10.1103/PhysRevB.105.014504

DO - 10.1103/PhysRevB.105.014504

M3 - Journal article

AN - SCOPUS:85122435578

VL - 105

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 1

M1 - 014504

ER -

ID: 308327073

Niels Bohr Institute